package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.mapper.DishMapper;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;
import java.util.stream.Collectors;

@Service
@Slf4j
public class DishServiceImpl extends ServiceImpl<DishMapper,Dish> implements DishService {
    @Autowired
    private DishFlavorService dishFlavorService;
//    //新增菜品，并且保存对应的口味数据
//    @Override
//    @Transactional
    public void saveWithFlavor(DishDto dishDto) {
//        //保存菜品的基本信息到菜品表dish
//        this.save(dishDto);
//        //获取dishId
//        Long dishId = dishDto.getId();
//        //保存菜品口味数据到菜品口味表dish_flavor
//        List<DishFlavor> list=dishDto.getFlavors();
//        //将获取到的dishId赋值给dishFlavor的dishId属性
//        for(DishFlavor dishFlavor:list){
//            dishFlavor.setDishId(dishId);
//        }
//        //同时将菜品口味数据保存到dish_flavor表
//        dishFlavorService.saveBatch(list);

        //将菜品数据保存到dish表
        this.save(dishDto);
        //获取dishId
        Long dishId = dishDto.getId();
        //将获取到的dishId赋值给dishFlavor的dishId属性
        List<DishFlavor> flavors = dishDto.getFlavors();
        for (DishFlavor dishFlavor : flavors) {
            dishFlavor.setDishId(dishId);
        }
        //同时将菜品口味数据保存到dish_flavor表
           dishFlavorService.saveBatch(flavors);
    }


    @Override
    public DishDto getByIdWithFlavor(Long id) {
        Dish dish=this.getById(id);
        DishDto dishDto=new DishDto();

        BeanUtils.copyProperties(dish,dishDto);

        LambdaQueryWrapper<DishFlavor> wrapper=new LambdaQueryWrapper();
        wrapper.eq(DishFlavor::getDishId,dish.getId());
        List<DishFlavor> flavors=dishFlavorService.list(wrapper);
        dishDto.setFlavors(flavors);

        return dishDto;
    }

    @Override
    public void updateWithFlavor(DishDto dishDto) {
        //更新dish表基本信息
        this.updateById(dishDto);

        //清理当前菜品对应口味数据---dish_flavor表的delete操作
        LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.eq(DishFlavor::getDishId,dishDto.getId());

        dishFlavorService.remove(queryWrapper);

        //添加当前提交过来的口味数据---dish_flavor表的insert操作
        List<DishFlavor> flavors = dishDto.getFlavors();

        flavors = flavors.stream().map((item) -> {
            item.setDishId(dishDto.getId());
            return item;
        }).collect(Collectors.toList());

        dishFlavorService.saveBatch(flavors);
    }
}
